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Finding the Fourth Proportional to 512.14, 768.62 and 268.95

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Solution

The fourth proportional to 512.14, 768.62 and 268.95 is: 403.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.14 : 768.62 = 268.95 : x
  2. Step 2: Convert to fraction form
    512.14/768.62 = 268.95/x
  3. Step 3: Cross multiply
    512.14x = 768.62 × 268.95
  4. Step 4: Simplify right side
    512.14x = 206,720.35
  5. Step 5: Solve for x
    x = 206,720.35/512.14
  6. Step 6: Final answer
    x = 403.64

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